{"id":9418,"date":"2025-07-31T10:46:50","date_gmt":"2025-07-31T10:46:50","guid":{"rendered":"http:\/\/localhost\/?p=9418"},"modified":"2025-07-31T10:46:50","modified_gmt":"2025-07-31T10:46:50","slug":"nyariv-sandboxjs-0823-prototype-pollution-sandbox-escape-dos","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=9418","title":{"rendered":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS"},"content":{"rendered":"<div style=\"font-family: Arial, sans-serif; max-width: 1200px; margin: 0 auto;\">\n<h2 style=\"color: #333; border-bottom: 2px solid #ff6600; padding-bottom: 10px;\">CVE Details<\/h2>\n<div style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 20px;\">\n<div style=\"padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);\">\n<h3 style=\"margin-top: 0; \">Basic Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Title<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Type<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">cve<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Published<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">2025-07-31T14:59:35.716Z<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Modified<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">2025-07-31T14:59:35.716Z<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div style=\"padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);\">\n<h3 style=\"margin-top: 0; \">Product Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Vendor<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">nyariv<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Product<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">sandboxjs<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Version<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">*<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<\/div>\n<div style=\"padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); margin-bottom: 20px;\">\n<h3 style=\"margin-top: 0; \">CVSS Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Base Score<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd; color: #ff6600; font-weight: bold;\">7.0 (HIGH)<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Attack Vector<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">CVSS:4.0\/AV:L\/AC:L\/AT:N\/PR:N\/UI:N\/VC:N\/VI:H\/VA:H\/SC:N\/SI:N\/SA:N<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div style=\"padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); margin-bottom: 20px;\">\n<h3 style=\"margin-top: 0; \">AI Analysis<\/h3>\n<table style=\"width:100%; border-collapse: collapse;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">AI Description<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">A prototype pollution vulnerability in @nyariv\/sandboxjs versions <=0.8.23 allows attackers to inject properties into Object.prototype, potentially causing a denial-of-service or escaping the sandbox environment. This is due to insufficient prototype access checks in the sandbox's executor logic.<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">AI Severity<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">High<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">AI Vendor<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">nyariv<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">AI Product<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">sandboxjs<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">AI Version<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">0.8.23<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div style=\"padding: 15px; border-radius: 5px; margin-bottom: 20px;\">\n<h4 style=\"margin-top: 0; \">Affected Products<\/h4>\n<ul style=\"margin: 0; padding-left: 20px;\">\n<li>nyariv sandboxjs *<\/li>\n<\/ul>\n<\/div>\n<div style=\"padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); margin-bottom: 20px;\">\n<h3 style=\"margin-top: 0; \">Additional Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">CWE List<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">CWE-1321<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border-bottom: 1px solid #ddd;\">Source<\/th>\n<td style=\"padding: 8px; border-bottom: 1px solid #ddd;\">VulnCheck<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div style=\"padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); margin-bottom: 20px;\">\n<h3 style=\"margin-top: 0; \">Description<\/h3>\n<div style=\"padding: 15px; border-left: 4px solid #4CAF50; \">A prototype pollution vulnerability exists in @nyariv\/sandboxjs versions <= 0.8.23, allowing attackers to inject arbitrary properties into Object.prototype via crafted JavaScript code. This can result in a denial-of-service (DoS) condition or, under certain conditions, escape the sandboxed environment intended to restrict code execution. The vulnerability stems from insufficient prototype access checks in the sandbox\u2019s executor logic, particularly in the handling of JavaScript function objects returned.<\/div>\n<\/div>\n<div style=\"padding: 15px; border-radius: 5px; margin-bottom: 20px;\">\n<h4 style=\"margin-top: 0; \">References<\/h4>\n<ul style=\"margin: 0; padding-left: 20px;\">\n<li><a href=\"https:\/\/gist.github.com\/Hagrid29\/9df27829a491080f923c4f6b8518d7e3\" target=\"_blank\">https:\/\/gist.github.com\/Hagrid29\/9df27829a491080f923c4f6b8518d7e3<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/nyariv\/SandboxJS\/issues\/31\" target=\"_blank\">https:\/\/github.com\/nyariv\/SandboxJS\/issues\/31<\/a><\/li>\n<li><a href=\"https:\/\/www.npmjs.com\/package\/@nyariv\/sandboxjs\" target=\"_blank\">https:\/\/www.npmjs.com\/package\/@nyariv\/sandboxjs<\/a><\/li>\n<li><a href=\"https:\/\/www.vulncheck.com\/advisories\/nyariv-sandboxjs-prototype-pollution-sandbox-escape-dos\" target=\"_blank\">https:\/\/www.vulncheck.com\/advisories\/nyariv-sandboxjs-prototype-pollution-sandbox-escape-dos<\/a><\/li>\n<\/ul>\n<\/div>\n<div style=\"text-align: center; margin-top: 30px;\">\n<a href=\"\" target=\"_blank\" style=\"display: inline-block; background-color: #4CAF50; color: white; padding: 12px 24px; text-decoration: none; border-radius: 4px; font-weight: bold; transition: background-color 0.3s;\">View Full CVE Details<\/a>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>CVE Details Basic Information Title nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS Type cve Published 2025-07-31T14:59:35.716Z Modified 2025-07-31T14:59:35.716Z Product Information Vendor nyariv Product sandboxjs&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,79,12,15,13,7,11,5],"class_list":["post-9418","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-70","tag-exploit","tag-high","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=9418\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS - zero redgem\" \/>\n<meta property=\"og:description\" content=\"CVE Details Basic Information Title nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS Type cve Published 2025-07-31T14:59:35.716Z Modified 2025-07-31T14:59:35.716Z Product Information Vendor nyariv Product sandboxjs...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zero.redgem.net\/?p=9418\" \/>\n<meta property=\"og:site_name\" content=\"zero redgem\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-31T10:46:50+00:00\" \/>\n<meta name=\"author\" content=\"invoker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"invoker\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418\"},\"author\":{\"name\":\"invoker\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/person\\\/fbfeae8dfad117ac08a7621bee1a1dca\"},\"headline\":\"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS\",\"datePublished\":\"2025-07-31T10:46:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418\"},\"wordCount\":80,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#organization\"},\"keywords\":[\"CVE\",\"CVSS\",\"CVSS-7.0\",\"exploit\",\"HIGH\",\"news\",\"Security\",\"tapic\",\"Vulnerability\"],\"articleSection\":[\"category_cve\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/zero.redgem.net\\\/?p=9418#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418\",\"url\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418\",\"name\":\"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS - zero redgem\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#website\"},\"datePublished\":\"2025-07-31T10:46:50+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/zero.redgem.net\\\/?p=9418\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=9418#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/zero.redgem.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#website\",\"url\":\"https:\\\/\\\/zero.redgem.net\\\/\",\"name\":\"zero redgem\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/zero.redgem.net\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#organization\",\"name\":\"zero redgem\",\"url\":\"https:\\\/\\\/zero.redgem.net\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"\",\"contentUrl\":\"\",\"width\":191,\"height\":188,\"caption\":\"zero redgem\"},\"image\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/person\\\/fbfeae8dfad117ac08a7621bee1a1dca\",\"name\":\"invoker\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f17c01d7338e6932bcde121cf83569393df3374625d25afd62677cfb528f2e3e?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f17c01d7338e6932bcde121cf83569393df3374625d25afd62677cfb528f2e3e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f17c01d7338e6932bcde121cf83569393df3374625d25afd62677cfb528f2e3e?s=96&d=mm&r=g\",\"caption\":\"invoker\"},\"sameAs\":[\"https:\\\/\\\/zero.redgem.net\"],\"url\":\"https:\\\/\\\/zero.redgem.net\\\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS - zero redgem","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/zero.redgem.net\/?p=9418","og_locale":"en_US","og_type":"article","og_title":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS - zero redgem","og_description":"CVE Details Basic Information Title nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS Type cve Published 2025-07-31T14:59:35.716Z Modified 2025-07-31T14:59:35.716Z Product Information Vendor nyariv Product sandboxjs...","og_url":"https:\/\/zero.redgem.net\/?p=9418","og_site_name":"zero redgem","article_published_time":"2025-07-31T10:46:50+00:00","author":"invoker","twitter_card":"summary_large_image","twitter_misc":{"Written by":"invoker"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/zero.redgem.net\/?p=9418#article","isPartOf":{"@id":"https:\/\/zero.redgem.net\/?p=9418"},"author":{"name":"invoker","@id":"https:\/\/zero.redgem.net\/#\/schema\/person\/fbfeae8dfad117ac08a7621bee1a1dca"},"headline":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS","datePublished":"2025-07-31T10:46:50+00:00","mainEntityOfPage":{"@id":"https:\/\/zero.redgem.net\/?p=9418"},"wordCount":80,"commentCount":0,"publisher":{"@id":"https:\/\/zero.redgem.net\/#organization"},"keywords":["CVE","CVSS","CVSS-7.0","exploit","HIGH","news","Security","tapic","Vulnerability"],"articleSection":["category_cve"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/zero.redgem.net\/?p=9418#respond"]}]},{"@type":"WebPage","@id":"https:\/\/zero.redgem.net\/?p=9418","url":"https:\/\/zero.redgem.net\/?p=9418","name":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS - zero redgem","isPartOf":{"@id":"https:\/\/zero.redgem.net\/#website"},"datePublished":"2025-07-31T10:46:50+00:00","breadcrumb":{"@id":"https:\/\/zero.redgem.net\/?p=9418#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/zero.redgem.net\/?p=9418"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/zero.redgem.net\/?p=9418#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/zero.redgem.net\/"},{"@type":"ListItem","position":2,"name":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS"}]},{"@type":"WebSite","@id":"https:\/\/zero.redgem.net\/#website","url":"https:\/\/zero.redgem.net\/","name":"zero redgem","description":"","publisher":{"@id":"https:\/\/zero.redgem.net\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/zero.redgem.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/zero.redgem.net\/#organization","name":"zero redgem","url":"https:\/\/zero.redgem.net\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/zero.redgem.net\/#\/schema\/logo\/image\/","url":"","contentUrl":"","width":191,"height":188,"caption":"zero redgem"},"image":{"@id":"https:\/\/zero.redgem.net\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/zero.redgem.net\/#\/schema\/person\/fbfeae8dfad117ac08a7621bee1a1dca","name":"invoker","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/f17c01d7338e6932bcde121cf83569393df3374625d25afd62677cfb528f2e3e?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/f17c01d7338e6932bcde121cf83569393df3374625d25afd62677cfb528f2e3e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/f17c01d7338e6932bcde121cf83569393df3374625d25afd62677cfb528f2e3e?s=96&d=mm&r=g","caption":"invoker"},"sameAs":["https:\/\/zero.redgem.net"],"url":"https:\/\/zero.redgem.net\/?author=1"}]}},"_links":{"self":[{"href":"https:\/\/zero.redgem.net\/index.php?rest_route=\/wp\/v2\/posts\/9418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zero.redgem.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zero.redgem.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zero.redgem.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zero.redgem.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9418"}],"version-history":[{"count":0,"href":"https:\/\/zero.redgem.net\/index.php?rest_route=\/wp\/v2\/posts\/9418\/revisions"}],"wp:attachment":[{"href":"https:\/\/zero.redgem.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zero.redgem.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zero.redgem.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}